phraseologist

[ frey-zee-ol-uh-jist ]
/ ˌfreɪ ziˈɒl ə dʒɪst /

noun

a person who treats of or is concerned with phraseology.
a person who affects a particular phraseology or is skilled in coining phrases.

Origin of phraseologist

First recorded in 1705–15; phraseolog(y) + -ist
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for phraseologist

phraseologist

/ (ˌfreɪzɪˈɒlədʒɪst) /

noun

a person who is interested in or collects phrases or who affects a particular phraseology

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012